初三寒假英语提高训练：阅读理解题（18）

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1、初三寒假英语提高训练：阅读理解题（18）　　WhentheAudetfamilyturnsonthelightsatBlueFarm,theyareusingelectricitythatcomesfromcows-cowmanure,tobespecific.　　Cowsproducealotofwastes.Onecowcancreate30gallonsofwasteseachday.Nowimaginetheoutputofover1,000cowsatBlueFarm.That’sreallyabigamount.　　Whenfarmerscleantheirbarns

2、,theyputthewastesinabigheap,andspreadsomeofthemontheirfieldsforfertilizer.ButnowplaceslikeBlueSpruceFarmhaveanewwayofusingcowwastes.Theyusethemtoproduceelectricity.　　Here’showitworks:Abigmachinemovesbackandforthcleaningthebarnfloor.“Thecowsaren’tbothered,”saysMarieAudet.“Theyareanimalsofhabit

3、;theygetusedtoit,andjustliftonefootandthenanothertoletitgoby.”　　Themachinepushesthemanureintoabig600-gallontanklikeasmallswimmingpool.Thetankiscalledadigesterbecausewhathappensthereisjustlikewhathappensinsideacow:Bacteriagettoworkandcontinuetodigestthemanure.　　Methanegasintheatmosphereisknown

4、asa“greenhouse”gasbecauseitkeepsheatjustlikeagreenhousedoes,causingourplanettowarmup.That’sanenvironmentalconcern.Butthedigesterhasagoodresult.Itsgasiskeptandusedtopowerelectricgenerators.　　AtBlueFarm,thegeneratorsmakeenoughelectricitytopower400homes.TheAudetfamilysellstheextraelectricitythey

5、can’tusethemselves.　　51.WelearnfromthetextthattheAudetfamilyisusingcowwastesto______.　　A.makeelectricityB.producefertilizerC.buildtheirfarmD.feedthecows　　52.HowarethecowwastescollectedintothedigesteratBlueFarm?　　A.MarieAudetdoestheworkB.Thejobisdonebymachine　　C.ThecowsliftthecowwastesD.Bacter

6、iagettoworkonthem　　53.Accordingtothepassage,whichofthefollowingischangedintoelectricity?　　A.Thepowerofmovingwater.B.Theheatofburningcoal.　　C.Thepowerofsunlight.D.Theheatofthemethanegas　　54.ThenewwayofusingcowwastesatBlueFarmmightbebestdescribedas______.　　A.reducingB.savingC.recyclingD.changin

7、g　　55.Whatisthemainpurposeforwritingthepassage?　　A.TointroduceanewwayofmakingelectricityB.Toexplainhowanewenergyworksbetter　　C.ToshowanewrebuildingplanforabigfarmD.Toexplainthereasonsforgreenhouseeffect